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Kristin Murphy, Deseret News
Hannah Zimmerman and Abigail Zimmerman smile as Seth Roberts poses for a photo for the Replace a Face program that will put his face into a historical photo at RootsTech at the Salt Palace in Salt Lake City on Saturday, Feb. 14, 2015.

The 2015 RootsTech conference ended Saturday night in Salt Lake City with a memorable finale. BYUtv sketch comedy group Studio C joined with singer David Archuleta for the closing event at the Salt Palace Convention Center. Both Archuleta and Studio C debuted brand-new material with a connection to the conference's theme of family history.

Studio C kicked off the event by debuting a never-before-seen comedy sketch about two grandchildren who, in an effort to interview their grandmother about her life for their family history, find out their grandparents have quite the past.

The show’s cast then came on stage and answered questions, which prompted an arm-wrestling competition, a demonstration of their famous shoulder angel and a Jimmy Fallon-style lip-sync battle on stage.

Cast members Stacey Harkey and Mallory Everton faced off in the battle with Harkey performing “It’s Not Unusual” by Tom Jones, complete with an ode to the “Fresh Prince of Bel-Air’s" famous dance move, “The Carlton.” Everton showed off her moonwalk skills while lip-syncing Michael Jackson’s “Man in the Mirror.”

Archuleta then surprised fans by running on stage to lip-sync “Jump” by Van Halen.

During his performance, Archuleta debuted a new song he was asked by The Church of Jesus Christ of Latter-day Saints to write to inspire youths to become more involved with family history, specifically Latino youths. Archuleta said he was honored to be a part of the song’s creation and not only debuted a music video for the song but also performed it live.

“This song is about taking us to the past to rediscover ourselves. I think that’s a big part of what family history is all about.”

Archuleta also performed “Glorious,” the song from the movie “Meet The Mormons.” He recorded the song while serving as a missionary in Chile.

The former "American Idol" contestant found a unique way to touch on the importance of family history by singing “Mirrors,” a song that singer Justin Timberlake wrote about two people who were important to him in his own family.

“Justin Timberlake wrote this song in tribute to his grandparents,” Archuleta said. “And I thought that was really interesting and really neat. It doesn’t matter who you are, even if you’re Justin Timberlake, you can look back and just admire and be inspired by your history.”

Email: mjones@deseretdigital.com